方程去括号得:6x-8+28-7x=4x,
移项合并得:5x=20,
解得:x=4.
故答案为:x=4
方程2(3x-4)+7(4-x)=4x的解为_.
方程2(3x-4)+7(4-x)=4x的解为______.
数学人气:407 ℃时间:2019-10-04 12:37:39
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